NO. 1 



S.MITllSOXIAX EX1"[.0KATI0XS, IQTQ 



the central porliun ui hLjurc l, the ui)per hniit of the .section Ijein^' 

 above the narn,)\v vertical h-shajjed snow hank directly over the 

 glacier. The evenly bedded rocks sloped at an ani^le of from lo to 

 20 degrees, westward, which accotnits for the L;reat thickness mea- 

 sured. althouL;h the elevation above the canyon bed was nt)t more 

 than 3.300 feet. 



Fig. 3. — VValcott camp located in the brusii beside Glacier River, i mile 

 (1.6 km.) below the foot of Southeast Lyell (iacicr, which is siiown more 

 di>-tinctly in tij^ure 5. Photograph by .Mrs. C. D. Walcott. U)Hj. 



I he j^lacicrs. — The .'southeast L\ell ( ilacicr is beanlil'nlK >hti\\n 

 in figure i. and also in figure 5, and more in detail b\- hgtn-e '•. where 

 it is cascading over a high cliff. l'"igtn'e i is a profile \iew of Lyell 

 ( ilacier from tin- ( ontinental l)i\iilc on the ri,L;hl to where it .abnts 

 against the low cliff on the left. In tigin-i- (> the foot of the glacier 

 is shown, along with large amount^ of debris finmin- tiie terminal 

 m<irainc. also the dark ma'>> of broken rock and debris carried on the 

 back of the glacier, which is shown in lignris 1 and (). 



.\ portion of the great snow field from whieh both l.\rll and 

 Moiis glaciers flow is shown on the ^lopt- of Mons I'eak on the left 

 side of figure 5. This snow tiekl exlemls back of 1 )i\isi«iii .Nb unit:, in, 



